This was very delicious. I made my crust from scratch, though, using this recipe: http://allrecipes.com/Recipe/Colleens-Potato-Crescent-Rolls/Detail.aspx and for some reason I had to cook it a lot longer.

Used blue potatoes I found at the farmer's market -- very good! I only managed to soak the fish for about 16 hours before I started cooking, and it was still a little too salty, but still pretty tasty. Also, I didn't particularly like the pitted green olives I found at the grocery store -- get a different kind in the future.